20216795

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:526

約数の個数: 16

約数和(自身を含む): 24766560

約数和(自身を除く): 4549765

約数列:

[1, 5, 89, 181, 251, 445, 905, 1255, 16109, 22339, 45431, 80545, 111695, 227155, 4043359, 20216795]

約数ペア:

[(1, 20216795), (5, 4043359), (89, 227155), (181, 111695), (251, 80545), (445, 45431), (905, 22339), (1255, 16109)]